Need Help ! if there is no veriable then how to show an error message

PHP
1

my code is
<?php echo $_GET[‘abc’]; ?>

then it would be something like this

?abc=436346

but if there is nothing in veriable i mean if ?abc=empty

then how we can show this message

" please put valid value for abc"

Urgrnt PLease Help

2

Try this:


  echo isset($_GET['abc']) ? $_GET['abc'] : 'please put valid value for abc';

  // OR 

  // SET DEFAULT VALUE
  $result = 'please put valid value for abc';

  // TEST  
  if(isset($_GET['abc'])) 
  {
     $result = $_GET['abc'];
  }
  echo $result;
3

i try this but does’nt work
i am using an iframe ,
here
http://utguyiui.webatu.com/ns.php
and when i try to access veriable for iframe
http://utguyiui.webatu.com/ns.php?abc=4363437

it’work but
when there is no veriable
it show me iframe here @ http://utguyiui.webatu.com/ns.php

but i want to display only an error message

4

Display all the items in $_GET then test for an exact match, etc



echo '<pre>';
print_r($_GET);
echo '</pre>';
5

don’t understand that

6

how we can write all items in $_get

please write this correctly for me

i am showing my full code

7

this is i am using

<iframe frameborder=“0” width=“480” height=“272” src="http://www.dailymotion.com/embed/video/&lt;?php echo $_GET[abc]; echo isset($_GET[‘abc’]) ? $_GET[‘abc’] : ‘please put valid value for abc’;

?></iframe>

when there is no veriable @ <iframe frameborder=“0” width=“480” height=“272” src="http://www.dailymotion.com/embed/video/veriable

then only show error message no iframe with message

you can see when use http://utguyiui.webatu.com/ns.php?abc= (empty)

iframe is showing and no error message
Plesae

8

You are missing quotation marks around ‘abc’
Php thinks ABC is an undefined constant.

9

but its still showing iframe not displaying error message
chk this
http://utguyiui.webatu.com/ns.php?abc=

10

Try removing the first $_GET[ABC] from your link.



&lt;iframe frameborder="0" width="480" height="272" src="http://www.dailymotion.com/embed/video/&lt;?php echo isset($_GET['abc']) ? $_GET['abc'] : 'please put valid value for abc';

?&gt;&lt;/iframe&gt;
11

doesn’t work

12

Back on my desktop…

Try this: